Turbocharger test stand with a hot gas generator for high-performance supercharging systems

Naundorf, Detlef; Bolz, Holger

doi:10.1007/bf03226916

Cited by 4 publications

(2 citation statements)

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“…If a turbocharger is attached to an internal combustion engine, then the cycle efficiency increases compared to that of the naturally aspirated engine. Figure 1 shows the mixed turbocharged cycle [13]. In this case, the flue gas energy (area 1-4-5-6-1) is used to drive a compressor.…”

Section: Turbocharging Principlesmentioning

confidence: 99%

Advanced Engine Technologies for Turbochargers Solutions

et al. 2021

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Research in the process of internal combustion engines shows that their efficiency can be increased through several technical and functional solutions. One of these is turbocharging. For certain engine operating modes, the available energy of the turbine can also be used to drive an electricity generator. The purpose of this paper is to highlight the possibilities and limitations of this solution. For this purpose, several investigations were carried out in the virtual environment with the AMESim program, as well as experimental research on a diesel engine for automobiles and on a stand for testing turbochargers (Turbo Test Pro produced by CIMAT). The article also includes a comparative study between the power and torque of the naturally aspirated internal combustion engine and equipped with a hybrid turbocharger. The results showed that the turbocharger has a very high operating potential and can be coupled with a generator without decreasing the efficiency of the turbocharger or the internal combustion engine. The main result was the generation of electrical power of 115 W at a turbocharger shaft speed of 140,000–160,000 rpm with an electric generator shaft speed of 14,000–16,000 rpm. There are many constructive solutions for electrical turbochargers with the generator positioned between the compressor and the turbine wheel. This paper is presenting a solution of a hybrid turbocharger with the generator positioned and coupled with the compressor wheel on the exterior side.

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Section: Turbocharging Principlesmentioning

confidence: 99%

Advanced Engine Technologies for Turbochargers Solutions

et al. 2021

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“…Sailer and authors have shown that through simulation it was proven that the performance of exhaust gas used by turbochargers is very high [2]. Naundorf and the authors sustain that the exhaust gas from internal combustion engines has a great potential to be used for the energy system of the engine [3]. Gabriel and the authors present that many turbocharger developers are trying to develop and offer improvements for turbocharger engines applied to spark ignition engines and also compression ignition engines.…”

Section: Introductionmentioning

confidence: 99%

The analysis of a hybrid turbocharger main parameters applied to an internal combustion engine

Chiriac

Condrea

Chiru

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Internal combustion engines are constantly developing. Currently, a solution in full development is a hybrid car that has an internal combustion engine propulsion combined with an electrical motor. The electrical motor is powered by a battery which in turn is connected to other electricity suppliers for recharging. Therefore, the aim is to recover the thermal energy from the car, through various solutions, in order to transform it into electricity. Electricity is for the car’s battery as well as for its consumers. After an analysis of the energy balance of the internal combustion engine, it can be seen that the engine energy still has great potential to be transformed into electrical energy through various solutions. Electrical energy can be produced even from braking or other mechanical devices that transform mechanical energy into electrical energy. For example, a co generator of energy hybrid electric turbocharger aims to recover exhaust gas energy and to capitalize it. The turbocharger is connected through a shaft with a generator. Between the compressor wheel and the generator is a speed reducer with a gear ratio of 1:10. This article aims to present the analysis based on the results of the experimental and simulation research of the hybrid turbocharger. The tests were performed using a diesel internal combustion engine with 4 cylinders at a capacity of 1.9 liters. The simulations will be performed using AMESim software developed by Siemens. The main parameters, which are highlighted, are: pressure ratio of the turbocharger, the rotation speed of the turbocharger and the power from the experimental results in relation to time and engine power at 100% load.

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